[Effects of socioeconomic status on the distribution of cardiovascular risk factors and clinical treatments of patients with acute myocardial infarction in Beijing].
OBJECTIVE
To evaluate the effects of socioeconomic status on the distribution of cardiovascular risk factors and clinical treatments of patients with acute myocardial infarction in Beijing.


METHODS
In Beijing, a prospective, multi-center, registration study was carried out which including 800 patients who were consecutively hospitalized for ST-segment elevation acute myocardial infarction within 24 hours after event attack in 19 different hospitals in Beijing between November, 2005 and December, 2006. Indicators of socioeconomic status included self-reported personal income (< 500, 500-2000, > 2000 RMB/ month), educational attainment (< or = 12 and > 12 years) and status of medical insurance (yes/no). According to categories of education, patients were categorized into two groups of lower socioeconomic status and higher socioeconomic status. Differences of cardiovascular risk factors and clinical treatments were compared across the two groups respectively.


RESULTS
Proportion of diabetes and hyperlipidemia in patients with higher socioeconomic status was much higher than that of patients with lower socioeconomic status (P < 0.05, P < 0.01 respectively). Patients with lower socioeconomic status were more likely to be smokers (P < 0.05). The rates of receiving coronary angiography and PTCA were much lower in patients with lower socioeconomic status. Medical insurance and income were the most important two socioeconomic factors determining the use of PTCA.


CONCLUSIONS
Compared to patients with lower socioeconomic status, patients with higher socioeconomic status had higher rates of hyperlipidemia and diabetes but lower smoking rate among cardiovascular risk factors. The rates of receiving interventional therapies were much lower in patients with lower socioeconomic status.
Feng
Qi
Q
Cardiovascular Center of Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing 100730, China.
Hu
Da-Yi
DY
Yang
Jin-Gang
JG
Sun
Yi-Hong
YH
Lu
Chang-Lin
CL
Zhang
Shou-Yan
SY
Song
Li
L
Zhang
Qing-Tan
QT
Wu
Dong
D
Zhang
Xin-Quan
XQ
D017668:Age of Onset; D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000191:economics; D002318:Cardiovascular Diseases / Q000453:epidemiology / Q000628:therapy; D002681:China / Q000453:epidemiology; D004522:Educational Status; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000191:economics* / Q000628:therapy*; D011446:Prospective Studies; D012307:Risk Factors; D012923:Social Class